Everyone Already know Wi-Fi.. So now get ready there's LI-FI.... Which is 100times faster than Wi-Fi And interesting fact is that, IT RUNS ON LIGHT RAYS FROM BULBS..!!

A
new technology called Li-Fi (Light Fidelity) promises connections up to
100 times faster than Wi-Fi.The term Li-Fi was first coined by Prof
Harald Haas from Edinburgh University, who demonstrated the technology
at a Ted (Technology, Entertainment and Design) conference in 2011. His
talk, which has now been watched nearly two million times, showed an LED
lamp streaming video. Prof Haas described a future when billions of
light bulbs could become wireless hotspots. In Li-Fi method the data
will be deliver by using the visible spectrum rather than radio waves.
Li-Fi can deliver internet access 100 times faster than traditional
Wi-Fi.In this Li-Fi method is the use of specialized LED driver chips.
These can dim and brighten LEDs encoding data much like a fast form of
Morse code. The entire process happens so fast that it is completely
imperceptible to humans.

Advantages of Li-Fi over Wi-Fi

Even
then, there is a more important question. Why do we need an alternative
means of connecting to the Internet when Wi-Fi works so well? Wi-Fi is
indeed a great success, says Mr. Haas, so much so that the radio
spectrum is getting overcrowded. We have deployed so many wireless
access points that they interfere with each other and slow down the
actual data rates. We need other pipes, fatter pipes, and light is a big
pipe for wireless connectivity.

Security benefits.
He also maintains that there are security benefits. Light-generated
Internet connections do not travel through walls, so cannot be
intercepted like a Wi-Fi signal. The professor looks forward to a
future where the much-hyped Internet of things becomes a reality; where
there is wireless connectivity everywhere; where your fridge talks to
your toaster. This provides the means to achieve that.

People's misconception about Li-Fi working.

People
would be forgiven for thinking that staying online with Li-Fi would
need the lights left on. Haas’s Li-Fi system is so sensitive that he’s
demonstrated it working with LED bulbs dimmed to such low levels that
they appear turned off.

“Currently so many companies designed a
smart lighting solution for an industrial environment where the data
communication is done through light. They are also doing a pilot project
with a private client where we are setting up a Li-Fi network to access
the Internet in their office space.”However, Velmenni was not the only
company interested in bringing Li-Fi to the real world. Other names,
such as Oledcomm and pureLiFi by the creator of technology Harald Haas,
are also working to commercialize the technology. As Li-Fi is based on
light, it cannot go through walls and would have a more limited range
than Wi-Fi – which also means greater security.

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